Solar Impulse 2 on Tuesday completed its historic round-the-world journey, becoming the first airplane to circle the globe powered only by the sun to promote renewable energy.
The sun-powered Solar Impulse 2 aircraft set off from New York's JFK airport early Monday, embarking on the transatlantic leg of its record-breaking flight around the world to promote renewable energy.
Global demand for energy will rise by 25% between 2014 and 2040, ExxonMobil has said in its latest energy outlook.
